Hello this is my first ever guide so here goes nothing~
I love Sona and she is the best support they ever got in my opinion because she increase damage, decrease damage and lots of things xD
I play Sona as Support
***At the beginning, spam your Q or whatever skill you took spam it 3 times to get your passive up***

P.s. sorry if my English isn't perfect

Pros
- Great healer
- Good support
- Sustain
- And of course nice tits!

Cons
- Very squishy
- Pretty weak
- Get focused in fights
- Slow

Take these if I was you
- Good escape and you need it since you already get focused at
- Take it if the enemy team haves lots of CC but I mostly take Mercury Thread
- No way!
- Good spell
- Don't need since you got runes and masteries
- Get it if you don't planning on buying wards
- Good escape if you don't planning on taking Flash take it then

Good items to get

You should go Bot, stay in a bush however ward it first so you don't face-check.

Good laner:
Ashe
Corki
Grave
Caitlyn
Tristana
Ezreal
Draven
Vayne
Twisted Fate

Okay laner:
Miss Fortune
Varus
Sivir
Teemo
Urgot
Twitch
Kog'maw

Make sure you give them support and heal, DO NOT kill steal with your Q, I see many Sona kills steal with their Q.

In team fight, make sure to use your R to stun as many enemies as you can possibly due your stun it can change the way of team fight, NEVER use your R to kill steal ALWAYS always use it at the beginning of the fight****
Don't rush to the fight or stand out too much!! After using your R, stay at the back, spamming your Q,W and E then your team possibly win the fight.

Let me see your scores don't be scare to show them to me ^O^

So yeah that is all, if you got any question just let me know
and if you got any ideas to make my build better just pop a post thanks~

Goodluck playing Sona